Improvement in cooking-stoves



3 Sheetv-Sheet 1.

J. J. ANDERSON. Cooking Stove.

Patented March 23, 1 869.

r 3 Shets-Sheet 2. J. J. ANDERSON.

Cooking Stove.

No. 88,112. Patented March.2 3, 1869.

WM, has I zfimd Wmh 3 Sheets-Sheet 3. J. J. ANDERSON.

Cooking Stove.

No. 88.112. w Patented March 23, 1869.

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J. J. ANDERSON, OF ROCHESTER, PENNSYLVANIA.

' Letters Patent No. 88,112, dated Ma/rch 23, 1869.

IMPROVEMENT IN COOKING-STOVES.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern:

Be itknown that I, J. J. ANDERSON, of Rochester, in the county of Beaver, and State of Pennsylvania, have invented an Improved Construction o Cooking- Stoves; and I do hereby declare that the following is a full and exact description thereof, reference being bad to the accompanying drawings, making part of this specification- Figure 1 being a perspective view of the stove.

Figure 2, a perspective view of the bottom and back of the stove, showing the form of the fines.

Figures 3 and 4, perspective views of parts detached.

Figure 5, a central longitudinal vertical section of the stove.

Like letters designate corresponding parts in all of the figures.

The first feature of my improvements consists in combining, with divingflue stoves, having lines of rounded, or doubly-arched form, and deprived of all abrupt turns, an oven, 13, of the form of a flattened cylinder, or elliptic in transverse section, or any unessential variation therefrom, securing a like result.

By this form, all right angles and short turns in the fines are avoided, and the draught is rendered more easy and direct, so that it is turned downward and underneath the oven more readily, and with less obstruction.

The oven is also more evenly heated, and withal, the outward appearance of the stove is rendered more attractive and handsome. Besides, less weight of metal is required, and the plates are less liable to crack than if made plane.

The elliptic, or flattened form has also a decided advantage over a cylindrical form, or a plane-sided oven with rounded corners, for three important reasons: first, its capacity-is greater horizontally, where it is required; second, it best suits the form and dimensions of the surrounding stove; third, its reverberatory action is superior to that of the forms named, with the same capacity.

The next feature of improvement consists in covering the top of the central, or return-flue with a single arched plate, J, of metal, meeting and covering a concave depression, D, in the bottom of the stove, so that thereby a flue without corners is formed, and with less joints, and those more easily kept tight than the ordinary joints with plates placed edgewise.

This single covering-plate J also continues upward in front of the stove-back, to the top of the stove, thus avoiding additional joints as well as turns.

It also presentsan'additioual thickness of metal between the flue and the interior of the oven, so that the heat onducted to the 1r1dd;e of the oven is less ntense, where less is wanted, in order to make the heating uniform therein.

Similar depressions, E, R, are made in the bottom of the stove, under the side fiues, as represented in fig. 2. The curves of these lines spriu from the terminations of the curves of the middle ue, as at N and 0,

thus assisting to tighten the adjacent joints of all the Another feature of my invention, in connection with the elliptic oven and doubly-arched flues, consists in a double-curved turn-plate, 0, (shown separately in fig. 3, and its position indicated by dotted lines in fig.

2,) situated in front of the flues, so as to direct the draught round in curved paths from theside fines to the return-flue, as indicated. And by causing the two curves of the plate to meet in the middle, the two portions of the draught are directed backward before they meet, so that they do not interfere with each other.

This turn-plate is removable, so that access can be had to the fines, under the fire-grate, thereby.

Another feature of improvement consists in the construction of the fire-back G, fig. 4, smooth, next to the fire, to prevent sulphur from the coal adhering themto, or lodging thereon, but with ribs, a a, on the back side, to prevent its springing, or warping by the heat.

The fire-back being concave. these ribs are on the concave side, and cross the same i'aansversely, or vertically. Thus 1 attain the requisite strength and durability, and avoid the destruction of the plate, by using coals conta ning sulphur.

I do not claim an elliptic form of oven, of itself, nor flues, circular, or rounded, in cross-section.

What I claim as my invention, and desire to secureby Letters Patent, is-- The combination and arrangement of the elliptic oven B, doubly-arched diving and return-fines, and doubly-curved turn-plate O, substantially as and for the purposes herein specified.

Also, the arched plate J, over the central returnflue, in combination with the concave depression under said flue, substantially as herein specified.

Also, the removable doubly-curved turn-plate O, substantially as and for the purpose set forth.

Also, the construction of thefire-back G, with smooth front, and ribs a a, on the concave side, crossing the same transversely, for the purpose set forth.

The above specification of my improved cookingstove, signed by me, this 29th day of May, 1868.

i J. "J. ANDERSON.

Witnesses:

SAMUEL Eoorr, JAMES ARBUOKLE. 

